公开(公告)号：US06809481B2

公开(公告)日：2004-10-26

申请号：US10374205

申请日：2003-02-26

申请人： Satoshi Seo ,  Harue Nakashima ,  Shunpei Yamazaki

发明人： Satoshi Seo ,  Harue Nakashima ,  Shunpei Yamazaki

IPC分类号： G09G320

CPC分类号： G09G3/3216 ,  G09G3/3225 ,  G09G2310/0256 ,  G09G2320/043 ,  H01L2251/564 ,  H05B33/0896

摘要： The purpose of the present invention is to provide a light emitting device using an organic light emitting element and allowed to be driven stably with long lifetime. In a light emitting device having an organic light emitting device provided with an organic compound layer for obtaining light emission by applying a voltage between a first electrode and a second electrode, and arrangements for applying a forward bias for emitting light from the organic light emitting device and a reverse bias of reverse polarity to the forward bias, the maximum voltage Vf of the forward bias is higher than the maximum voltage Vr of the reverse bias in an alternating current cycle formed of the forward bias and the reverse bias. At this time, the Vr is preferably a quarter of the Vf or higher than that. Additionally, the time Tr to apply the reverse bias in the alternating current cycle is preferably equal to or longer than the time Tf to apply the forward bias.

摘要翻译： 本发明的目的是提供一种使用有机发光元件的发光器件，并且能够长寿命地被稳定地驱动。 在具有通过在第一电极和第二电极之间施加电压而获得发光的有机化合物层的有机发光器件的发光器件中，以及用于施加来自有机发光器件的光的正向偏压的布置 以及与正向偏压相反极性的反向偏压，正向偏压的最大电压Vf高于由正向偏压和反向偏压形成的交流电循环中的反向偏压的最大电压Vr。 此时，Vr优选为Vf的四分之一或更高。 此外，在交流电周期中施加反向偏置的时间Tr优选等于或大于施加正向偏压的时间Tf。